Valve for volatile liquids, particularly expansion valve for refrigeration plants
CA 1261640 A · Owner: Danfoss A/S · Inventors: Meldgaard, Poul O.; Valbjýrn, Knud V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A valve for volatile liquids particularly an expansion valve for refrigeration plants, comprises a closure member (2) with which a throttle point (17) can be blocked. A damping apparatus comprises a substantially cylindrical damping chamber (24), a compressor piston (22) engaged therein and connected to the closure member (20) and at least one throttle passage (23) between the inlet side (18) of the valve and the damping chamber (24). The damping chamber (24) is associated with cooling apparatus (29) which is downstream of the throttle point (17) and in which part of the liquid vaporises. The cooling apparatus is formed in particular by a cooling chamber (29) adjacent to the damping chamber …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.